ABB S401E-B16 Interruttore automatico unipolare 16 A con curva B 2CCS551001R0165

Electricians and panel builders install the ABB S401E-B16 miniature circuit breaker in distribution boards to protect single-phase circuits against overload and short-circuit. With a rated current of 16 A and B tripping characteristic, it is suited for residential and commercial applications such as lighting and socket outlets.

Key specifications

• Rated current: 16 A
• Number of poles: 1
• Tripping characteristic: B
• Rated voltage: 230/400 V AC
• Rated short-circuit breaking capacity: 6 kA
• Energy limiting class: 3
• Frequency: 50/60 Hz
• Mounting: DIN rail
• Terminal type: screw terminals
• Terminal capacity: 35 mm² rigid, 25 mm² flexible
• Rated insulation voltage: 440 V
• Rated impulse withstand voltage: 4 kV
• Electrical endurance: 10000 cycles
• Mechanical endurance: 20000 cycles
• Degree of protection: IP20 (terminals), IP40 (enclosure with cover)
• Standards: IEC/EN 60898-1
• Series: S400E

Why choose it

The S400E series offers reliable protection with a compact design, making it easy to integrate into standard distribution boards. Its screw terminals accommodate a wide range of conductor sizes, ensuring secure connections.

Ideal use cases

• Protection of lighting circuits in residential buildings
• Protection of socket outlet circuits in commercial premises
• Use in distribution boards for single-phase loads

Good to know

The breaker complies with IEC/EN 60898-1 and is suitable for use in 50/60 Hz systems. It mounts on standard DIN rail and provides IP20 protection at the terminals.